Disposable razor and case



Feb. 3, 1970 y F. F. s. sn-zv: 22

DISPOSABLE RAZOR AND CASE Filed Jan. 16, 1969 I 2 Sheets Sheet 1 INVENTOR FREDDA S. SIEVE Feb. 3, 1970 I 7 F. 5. SIEVE 3,492,722

DISPOSABLE RAZOR AND CASE Filed Jan. 16, 1969 2 Sheets-Sheet 2- INVENTOR FREDDA F.$. SJEVE M MM ATTORNEYS United States Patent 3,492,722 DISPOSABLE RAZOR AND CASE Fredda F. S. Sieve, 4 E. 70th St, New York, N.Y. 10021 Continuation-impart of application Ser. No. 661,696,

Aug. 18, 1967. This application Jan. 16, 1969, Ser.

Int. Cl. B26b 21/00, 21/14 US. Cl. 3047 11 Claims ABSTRACT OF THE DISCLOSURE REFERENCE TO A RELATED APPLICATION This application is a continuation-in-part of application S.N. 661,696, filed Aug. 18, 1967, now abandoned.

OBJECTS OF THE INVENTION An object of the present invention is the development of a disposable safety razor and the protective casing therefore.

A further object of the invention is the development of a safety razor formed of inexpensive material so that it may be discarded after one or several shaves, the usual blade and shaving guide being protected by a casing during storage and transportation, said casing being capable of containing shaving items such as a supply of shaving cream, a supply of talcum powder, a septic stick, etc.

Another object of the invention is the development of an inexpensive razor to be supplied to travelers in an emergency and to be discarded after it has been used once or several times, the usual blade forming a permanent fixture of the shaving implement.

Still another object of the invention is to provide a reusable safety razor whereby the used blade can be readily replaced with a new one.

These and other objects of the invention will become more apparent upon perusal of the drawings and the specification.

DESCRIPTION OF THE INVENTION I have now discovered a disposable and reusable safety razor consisting of a case, preferably of square or rectangular configuration, with a width of approximately that of a standard injection razor blade, and a hinged cover capable of closing said case. The outermost portion of the hinged cover has an integral, substantially vertical extension, the outermost limit of said extension being less than the depth of said case. The vertical extension on said cover has a shaving guide and a standard injection razor blade mounted thereon in such a manner that when the hinged cover is opened, the razor and shaving guide is in position to effect shaving. The case and cover are constructed of an inexpensive material such as metal or plastic, although it is preferable to use a polystyrene or polyethylene of injection molding grade.

In the drawings:

FIGURE 1 is a top plan view of the disposable safety razor with the cover in open position.

FIGURE 2 is a side view of the structure of FIGURE 1 along lines AA, showing the blade assembled.

FIGURE 3 is a partial side view of the disposable safety razor with the cover in the closed position.

FIGURE 4 is a top view of the molded razor holder.

FIGURE 5 is a side view of the molded razor holder.

FIGURE 6 is a perspective view of the several parts of the reusable embodiment in disassembled condition.

FIGURE 7 is a view along lines 7--7 in FIGURE 6.

FIGURE 8 is a cross-sectional view along line 88 of FIGURE 9 of another embodiment of the safety razor wherein one face of the shave guide is inclined for the purpose of positioning the blade at an angle.

FIGURE 9 is top view of the embodiment illustrated in FIGURE 8.

With reference to the drawings, the preferred embodiment of the disposable razor consists of a substantially rectangular case 1 having four sides and a bottom. Case 1 has a cover 2 aflixed thereto by hinge 3. This hinge 3 is preferably molded in place by conventional methods and, in a preferred embodiment, has a molded stop (not shown) whereby the opening of the cover 2 is limited to a substantially angle from its closed position. This molded stop, however, can be omitted without affecting the use of the razor. The cover 2 has a substantially vertical extension or shave guide 4 integrally molded therewith. In a preferred embodiment, the vertical extension or shave guide 4 is supported by one or more ribs 5, likewise integrally molded thereon.

Preferably, the case 1 and the cover 2 are formed in one operation by injection molding utilizing polystyrene or polyethylene as the molding material with the hinge 3 molded therewith. However, as another embodiment, the hinge 3 can be a snap hinge whereby the cover 2 can be removed from the case 1 for shaving.

The razor blade 6 is held in place behind the shave guide 4 by means of a separately molded backing guide 7, which is shown detached in FIGURES 4 and 5. Backing guide 7 is molded with two projections 8 which coincide with the positioning holes in a standard injection razor blade. The backing guide 7 is preferably of slightly lesser length than the width of the cover 2 and about the same length as a standard injection razor blade 6.

In addition, the outermost edge of backing guide 7 is preferably beveled on the face opposite the razor blade 6. The cover 2 is preferably molded with two extension tabs 9 at the edges and behind the shave guide 4.

These extension tabs 9 are preferably slightly longer than the depth of the razor blade 6 so that the face is protected from the side edges of the razor blade 6. The backing guide 7 fits snugly between these two extension tabs 9.

For assembly, the razor blade 6 is fitted onto the projections 8 of the backing guide 7 and the whole assembly is fitted between the extension tabs 9 and heat sealed in place. If the projections 8 are of the same thickness or only slightly thicker than the razor blade 6, these projections heat seal to the shaving guide 4 while the bottom and sides of backing guide 7 are heat sealed to the cover 2 and the extension tabs 9, thus effecting a secure and snug fit of the razor blade 6 in correct shaving position with reference to the shaving guide 4 to effect a safety razor configuration.

The disposable razor can also be constructed by an integral molding of the backing guide 7, the shave guide 4 and the razor blade 6 in one operation.

While one method of mounting the razor blade has been shown, it is also possible to thicken the backing guide 7, in order to strengthen it, and utilize thinner projections 8 which do not protrude through the positioning openings in a standard injection blade, so that the razor blade 6 is held in :position by a snap fit and can be removed for insertion of a fresh blade. It is also possible to provide Patented Feb. 3, 1970 that the projections 8 of the backing guide 7 extend as threaded members through the face of shaving guide 4, and are mounted by nuts screwed thereon whereby the razor blade can be readily replaced.

In the embodiment illustrated in FIGURES 6 and 7, vertical extension 11 is integrally formed with cover 2 at the outermost portion thereof. A ledge 12 projects from one face of extension 11 and is generally coextensive with extension 11 in the lengthwise dimension. For the purpose of accurately positioning balde 13 against extension 11, a positioning slot is provided in cover 2 and a pair of strips 14 are secured against both ends of extension 11. Strips 14 project beyond the face of extension 11 and thus facilitate accurate positioning of the blade 13 in slot 15 and against ledge 12 of extension 11. Sleeve 16 consists of front wall 17, rear wall 18, and side walls 19. Front wall 17 comprises integral shaving guide 20 and tabs 21. Shaving guide 20 is of the reeded type and consists of a :plurality of uniformly spaced elements 22 which extend beyond front wall 17. As in previous embodiments, shaving guide can be disposed on the vertical extension instead of being on the sleeve.

The embodiment disclosed in FIGURES 6 and 7 is assembled by positioning blade 13 between strips 14 and in the slot 15 against ledge 12. Sleeve 16 is removably and snugly positioned on the extension 11 and in abutment with ribs 25, thus securing blade 13 in its operative position. Elements 22 extend over and rest on extension 11, but leave the blade exposed. Tabs 21 rest on abutment 23 and project beyond front wall 17 and over the blade itself. Tabs 21 serve a dual function: they maintain the blade securely in place and protect the face from the edges of the razor blade.

When it becomes desirable to replace the blade, all that need be done is to remove the sleeve, replace the blade with a new one, and slip the sleeve on again.

Another embodiment of the safety razor is illustrated in FIGS. 8 and 9. Here, shave guide 26 and ribs 27 are formed integrally with cover 2 of the safety razor. Shave guide 26 is of the reeded type and consists of a plurality of spaced elements 28. One face of the shave guide is provided with a stepped ledge the exterior wall of which is inclined to provide means for mounting the blade at an angle, as is apparent from FIG. 8. The lower edge of blade 29 is inserted into slot 30 and the blade positioned against the inclined surface of the ledge. Backing guide 32, corresponding to backing guide 7 of the embodiment illustrated in FIGS. 1-5, is applied against the blade, as previously described. Backing guide 32 fits between extension tabs 31 provided at opposite ends of the safety razor and has the function of positioning the blade for use.

In addition to serving as an abutment and positioning means for backing guide 32, extension tabs 31 may also serve the purpose of preventing contact between the face and the corners of the blade thus eliminating skin nicks and scratches. When it is desired to provide this safety measure, the extension tabs 31 should extend to the same height or above the blade.

The concept of positioning the blade of a safety razor at an angle can also be applied to the embodiment illustrated in FIGS. 6 and 7. Essential modifications would include the provision of an inclined ledge 12 and a correspondingly inclined back wall 18 of sleeve 16. Aside from the adaptation of sleeve 16 to the different dimensions resulting from the inclined ledge 12, the remaining component parts of the safety razor need not be altered.

In order to effect a secure closing of the cover 2 against the 'case 1, it is advisable to provide for snap fits 10 molded on the cover which frictionally engage the case 1 when the cover is closed to hold the cover against the case. The positioning of these snap fits 10 can be at any point on the cover 2. It is also possible to provide that the backing guide be positioned in such a manner that 4 it fits frictionally against the side of the case 1 to hold the cover 2 in closed position.

The construction of the case and cover assembly of the disposable razor is preferably made by injection molding using an injection molding grade of polystyrene or polyethylene. However, other methods of construction can be employed such as separately molded and glued sides, bottom and cover. Also other types of thermoplastic molding powders can be employed in the injection molding emobdiment. In addition, it is also possible to form the disposable razor from an inexpensive metal.

It is also obvious that the shaving head assembly can be positioned further in on the cover as long as the protruding lip of the cover does not interfere with the plane of the razor shave line when shaving. Other types of razor blades can be employed other than the standard injection razor blade such as conventional single edged razor blades by adjustment of the depth of the case and the length of the shave guide.

In use, the razor is supplied as an emergency shaving implement in the closed position. The substantially rectangular case has a fairly substantial empty area in which a small tube of shaving cream, a small supply of talcum powder and a septic pencil or other shaving accessories can be stored, if desired. The cover and case can be imprinted with advertising, such as a legend, identifying the supplier, if desired. When it is desired to use the razor, the cover is opened, exposing the razor blade in correct shaving configuration. After preparation of the beard for shaving, the cover and case, in opened position, is grasped in the hand and the shaving guide applied to the face and pulled obliquely in a conventional manner. Because of the construction of the shaving guide which extends beyond the razor blade edge, only that part of the razor blade is exposed as is normal in a safety razor. Since the shaving guide is wider than the razor blade and the extension tabs extend beyond the side edges of the razor blade, face nicks which might occur from exposed side edges of the razor blade are avoided.

While I have disclosed several specific embodiments of the disposable razor of the invention, it is obvious that other expedients discussed above and/or known to those skilled in the art can be employed without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. A disposable razor comprising a case having a hinged cover capable of closing said case;

a substantially vertical, integrally mounted extension on the outer portion of said hinged cover, the outermost limit of said extension being less than the depth of said case;

tab:1 alt each end of said extension to receive a razor shaving guide provided on said extension; and

a razor blade mounted on said extension.

2. The disposable razor of claim 1 wherein said razor blade is mounted on said shaving guide by means of a backing member heat sealed into place.

3. Disposable razor of claim 1 including means for frictionally holding said cover in its closed position.

4. Disposable razor of claim 1 including a removable, snugly fitting sleeve disposed over said extension and said razor blade for securely maintaining said razor blade in p ace.

5. Disposable razor of claim 4 wherein said removable sleeve includes a second set of tabs that overlap said razor blade to restrict its movement in the vertical plane.

6. Disposable razor of claim 5 including a positioning slot disposed in said cover, said slot and said tabs serving to facilitate accurate positioning of said razor blade on said extension.

7. Disposable razor of claim 4 wherein said shaving guide is integrally mounted on said sleeve and consists of a plurality of spaced elements projetcing from said sleeve and resting on said extension.

8. Disposable razor of claim 1 including a stepped ledge on one face of said extension extending below said extension, said blade being mounted against said ledge,

9. Disposable razor of claim 1 including means for mounting said blade at an angle provided on one face of said extension.

10. Disposable razor of claim 1 wherein one face of said extension is provided with an inclination for mounting said blade at an angle.

11. Disposable razor of claim 8 wherein one wall of said stepped ledge is formed with an inclination for mounting said blade at an angle.

References Cited UNlTED STATES PATENTS 2,133,576 10/1938 Rud 3047 2,144,318 1/1939 Kryder 150. 5 2,259,198 10/1941 Bricher 30-47 2,501,987 3/1950 Brown 30-32 2,687,157 8/1954 Cowan 150-.5

2,820,287 1/1958 Hyatt 30-32 10 FOREIGN PATENTS 510,155 8/1920 France.

28,911 12/1912 Great Britain.

OTHELL M. SIMPSON, Primary Examiner 15 GARY F. GRAFEL, Assistant Examiner U.S. c1. X.R. 30-32, 86 

